Water Well Journal
Issue link: http://read.dmtmag.com/i/482464
expressed as 050/05SE. This method ensures other users of the data know the collector was using the American Right Hand Rule. (Lisle et al. 2011) Parting Thoughts Determining the relative position of a formation is the first step toward unrav- eling the geologic puzzle. Combining the strike and dip data from an outcrop study and referencing that data to a topographic map will allow for normal- izing the data to a common datum. Using the understanding of geologic processes in conjunction with this data, formation positions and structure can be projected into the subsurface. A better understanding of the sub- surface is obtained through a better understanding of the association and as- semblage of formations in outcrop. So next time you pass that beautiful road cut, don't hesitate to stop and grab your pocket transit. You might be surprised at what you learn. References Bates, Robert L., and Julia A. Jackson. 1984. Dictionary of Geological Terms—Third Edition. New York: Anchor Books. Coe, Angela L. 2010. Geological Field Techniques. Milton Keynes, United Kingdom: Blackwell Publishing Ltd. Compton, Robert R. 1962. Manual of Field Geology. New York: John Wiley & Sons Inc. Lisle, Richard J., Peter J. Brabham, and John W. Barnes. 2011. Basic Geolog- ical Mapping—Fifth Edition. Chich- ester, West Sussex, United Kingdom: John Wiley & Sons Ltd. Straub, Raymond L. Jr., PG. 2013. "Field Notes." Water Well Journal 67, no. 5: 31-34. Tarbuck, Edwards J., and Frederick K. Lutgens. 2005. Earth: Introduction to Physical Geology, Eighth Edition. Upper Saddle River, New Jersey: Pearson/Prentice Hall. The Brunton Company. 2000. "Pocket Transit Instruction Manual." Riverton, Wyoming: The Brunton Company. Raymond L. Straub Jr., PG, is the president of Straub Corp. in Stanton, Texas, a Texas-registered geoscience firm and specialized ground- water services firm. He is a Texas-licensed professional geo- scientist and holds master driller licenses in Texas and New Mexico and a master pump installer license in Texas. He can be reached at raymond@straubcorporation.com. WWJ Twitter @WaterWellJournl Figure 4. Strike and dip measurement. WWJ April 2015 31 the DR can drill without fluids the DR can drill without fluids el, glacial till, and boulder v a gra e bee v t DR drills ha emos or F w er in lo er in lo t a t w t w ec ec t o de o de y t y t s the abilit s, the abilit es the li thod minimiz he DR me s. T r edly in some of th t epea en r v o en pro ed ed. v o tions is impr tions is impro orma orma w f w f -flo flo w tion and aqu cula s circ elihood of los k erb v ed o t onsolida t unc oughes he t tion. Because tamina on s-c os er cro uif tions, including sand orma den f bur e d, o drill. Canada ( 1.9190 .66 1.800 or call fo , visit e o learn mor To y t a er w t t be ti oduc o the pro tributions t on c s Dual ' t emos or , F 9 7 e 19 Sinc s orldwi (W 5.5800 3.29 1.40 .S.A.) a/U DR ca/ t. emos or or t a y of opera ofitabilit y and pr ivit ed on the ere e deliv v otary drills ha R y , wing numbe Eng DE ) de o or a gro . F orldwide w . e ormanc er perf t t omise of be e pro p s simply no try e indus c esour or the r ed solutions f ineer ESIGN. BUILD. PERFORM. e' ther s, or t ac tra on er of c e significan o make tinue t on y c he T o . y . t